Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect
Spatial synchrony between populations emerges from endogenous and exogenous processes, such as intra- and interspecific interactions and abiotic factors. Understanding factors contributing to synchronous population dynamics help to better understand what determines abundance of a species. This study...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/313650 2024-01-07T09:37:52+01:00 Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect Turkia, Tytti Jousimo, Jussi Tiainen, Juha Helle, Pekka Rintala, Jukka Hokkanen, Tatu Valkama, Jari Selonen, Vesa Ecology and Evolutionary Biology Faculty of Biological and Environmental Sciences 2020-03-27T01:50:01Z 13 application/pdf http://hdl.handle.net/10138/313650 eng eng Springer 10.1007/s00442-019-04589-5 Turkia , T , Jousimo , J , Tiainen , J , Helle , P , Rintala , J , Hokkanen , T , Valkama , J & Selonen , V 2020 , ' Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect ' , Oecologia , vol. 192 , no. 2 , pp. 425-437 . https://doi.org/10.1007/s00442-019-04589-5 db2a6df1-23db-4cd8-bcef-a0f3a7228777 http://hdl.handle.net/10138/313650 000512043400011 cc_by openAccess info:eu-repo/semantics/openAccess Boreal forest Population dynamics Sciurus vulgaris Trophic interactions HABITAT SELECTION SCIURUS-VULGARIS PINE MARTEN LONG-TERM BREEDING PERFORMANCE BIOTIC INTERACTIONS NORTHERN GOSHAWK BOREAL FORESTS SEED CROP DYNAMICS 1172 Environmental sciences 1181 Ecology evolutionary biology Article publishedVersion 2020 ftunivhelsihelda 2023-12-14T00:07:05Z Spatial synchrony between populations emerges from endogenous and exogenous processes, such as intra- and interspecific interactions and abiotic factors. Understanding factors contributing to synchronous population dynamics help to better understand what determines abundance of a species. This study focuses on spatial and temporal dynamics in the Eurasian red squirrel (Sciurus vulgaris) using snow-track data from Finland from 29 years. We disentangled the effects of bottom-up and top-down forces as well as environmental factors on population dynamics with a spatiotemporally explicit Bayesian hierarchical approach. We found red squirrel abundance to be positively associated with both the abundance of Norway spruce (Picea abies) cones and the predators, the pine marten (Martes martes) and the northern goshawk (Accipiter gentilis), probably due to shared habitat preferences. The results suggest that red squirrel populations are synchronized over remarkably large distances, on a scale of hundreds of kilometres, and that this synchrony is mainly driven by similarly spatially autocorrelated spruce cone crop. Our research demonstrates how a bottom-up effect can drive spatial synchrony in consumer populations on a very large scale of hundreds of kilometres, and also how an explicit spatiotemporal approach can improve model performance for fluctuating populations. Peer reviewed Article in Journal/Newspaper Accipiter gentilis Northern Goshawk HELDA – University of Helsinki Open Repository Norway Oecologia 192 2 425 437 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Boreal forest Population dynamics Sciurus vulgaris Trophic interactions HABITAT SELECTION SCIURUS-VULGARIS PINE MARTEN LONG-TERM BREEDING PERFORMANCE BIOTIC INTERACTIONS NORTHERN GOSHAWK BOREAL FORESTS SEED CROP DYNAMICS 1172 Environmental sciences 1181 Ecology evolutionary biology |
spellingShingle |
Boreal forest Population dynamics Sciurus vulgaris Trophic interactions HABITAT SELECTION SCIURUS-VULGARIS PINE MARTEN LONG-TERM BREEDING PERFORMANCE BIOTIC INTERACTIONS NORTHERN GOSHAWK BOREAL FORESTS SEED CROP DYNAMICS 1172 Environmental sciences 1181 Ecology evolutionary biology Turkia, Tytti Jousimo, Jussi Tiainen, Juha Helle, Pekka Rintala, Jukka Hokkanen, Tatu Valkama, Jari Selonen, Vesa Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect |
topic_facet |
Boreal forest Population dynamics Sciurus vulgaris Trophic interactions HABITAT SELECTION SCIURUS-VULGARIS PINE MARTEN LONG-TERM BREEDING PERFORMANCE BIOTIC INTERACTIONS NORTHERN GOSHAWK BOREAL FORESTS SEED CROP DYNAMICS 1172 Environmental sciences 1181 Ecology evolutionary biology |
description |
Spatial synchrony between populations emerges from endogenous and exogenous processes, such as intra- and interspecific interactions and abiotic factors. Understanding factors contributing to synchronous population dynamics help to better understand what determines abundance of a species. This study focuses on spatial and temporal dynamics in the Eurasian red squirrel (Sciurus vulgaris) using snow-track data from Finland from 29 years. We disentangled the effects of bottom-up and top-down forces as well as environmental factors on population dynamics with a spatiotemporally explicit Bayesian hierarchical approach. We found red squirrel abundance to be positively associated with both the abundance of Norway spruce (Picea abies) cones and the predators, the pine marten (Martes martes) and the northern goshawk (Accipiter gentilis), probably due to shared habitat preferences. The results suggest that red squirrel populations are synchronized over remarkably large distances, on a scale of hundreds of kilometres, and that this synchrony is mainly driven by similarly spatially autocorrelated spruce cone crop. Our research demonstrates how a bottom-up effect can drive spatial synchrony in consumer populations on a very large scale of hundreds of kilometres, and also how an explicit spatiotemporal approach can improve model performance for fluctuating populations. Peer reviewed |
author2 |
Ecology and Evolutionary Biology Faculty of Biological and Environmental Sciences |
format |
Article in Journal/Newspaper |
author |
Turkia, Tytti Jousimo, Jussi Tiainen, Juha Helle, Pekka Rintala, Jukka Hokkanen, Tatu Valkama, Jari Selonen, Vesa |
author_facet |
Turkia, Tytti Jousimo, Jussi Tiainen, Juha Helle, Pekka Rintala, Jukka Hokkanen, Tatu Valkama, Jari Selonen, Vesa |
author_sort |
Turkia, Tytti |
title |
Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect |
title_short |
Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect |
title_full |
Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect |
title_fullStr |
Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect |
title_full_unstemmed |
Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect |
title_sort |
large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect |
publisher |
Springer |
publishDate |
2020 |
url |
http://hdl.handle.net/10138/313650 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Accipiter gentilis Northern Goshawk |
genre_facet |
Accipiter gentilis Northern Goshawk |
op_relation |
10.1007/s00442-019-04589-5 Turkia , T , Jousimo , J , Tiainen , J , Helle , P , Rintala , J , Hokkanen , T , Valkama , J & Selonen , V 2020 , ' Large-scale spatial synchrony in red squirrel populations driven by a bottom-up effect ' , Oecologia , vol. 192 , no. 2 , pp. 425-437 . https://doi.org/10.1007/s00442-019-04589-5 db2a6df1-23db-4cd8-bcef-a0f3a7228777 http://hdl.handle.net/10138/313650 000512043400011 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Oecologia |
container_volume |
192 |
container_issue |
2 |
container_start_page |
425 |
op_container_end_page |
437 |
_version_ |
1787428607562350592 |